Results 131 to 140 of about 337 (170)
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Enzymatic glycerolysis for the conversion of plant oils into animal fat mimetics
Food Research International, 2023Substituting animal-based fats with plant-based fats of similar stability and functionality has always posed a significant challenge for the food industry. Enzymatic glycerolysis products are systems formed by converting native triacylglycerols in liquid oils into monoacylglycerols and diacylglycerols, mainly studied in the last few years for their ...
Yasamin Soleimanian +2 more
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Glycerolysis of linseed oil: A compositional study
Journal of the American Oil Chemists' Society, 1969AbstractSodium hydroxide catalyzed glycerolysis of linseed oil is greatly enhanced by increase in temperature but only moderately by increase in catalyst concentration. That the active catalyst under these conditions is the glyceroxide ion and not the hydroxide ion was confirmed by performing the reaction with freshly prepared sodium glyceroxide.
A. E. Rheineck +2 more
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Enzymatic glycerolysis of a triglyceride in aqueous and nonaqueous microemulsions
Journal of the American Oil Chemists' Society, 1989AbstractEnzymatic solvolysis of a model triglyceride, palm oil, was performed in microemulsions containing isooctane, sodiumbis(2‐ethylhexyl)sulfosuccinate (AOT), palm oil and a combination of water and glycerol as the polar component. Using a 1,3‐specific lipase both hydrolysis, leading to the formation of fatty acid and one mole of monoglyceride, and
Krister Holmberg +2 more
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Solvent‐free enzymatic glycerolysis of marine oils
Journal of the American Oil Chemists' Society, 1995AbstractMarine triglyceride oils (cod liver oil and oils from blubber of harp seal and minke whale) were reacted with glycerol using lipase as a catalyst at low temperature. A solvent‐free batch system with magnetic stirring was used. Solidification of the reaction mixture occurred, and a mixture of mono‐, di‐, and triglycerides was obtained in all ...
Bjørnar Myrnes +3 more
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Glycerolysis of marine oils and the preparation of acetylated monoglycerides
Journal of the American Oil Chemists' Society, 1960ConclusionsThe glycerolysis reaction was applied to menhaden, tuna, herring, sardine, and salmon‐egg oils. Optimum reaction time for the preparation of α‐monoglycerides was found to vary, reproducibly, from 45 to 60 min., depending on the particular kind of marine oil employed.
Edward H. Gruger +2 more
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Enzymatic Glycerolysis of Palm and Palm Kernel Oils
Chemical Engineering Communications, 2005Abstract Glycerolysis of palm and palm kernel oils were carried out using commercial lipases from Candida antarctica (Novozym 435) and Mucor miehei (Novozym 388) as catalyst (500 units lipase/g oil) at 40°C and with an oil:glycerol molar ratio of 1:2 in a solvent-free system.
Melek Tu¨ter, H. AyŞe Aksoy
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High‐yield enzymatic glycerolysis of fats and oils
Journal of the American Oil Chemists' Society, 1991Several triglyceride fats and oils were reacted with glycerol using lipase as catalyst. A batch system with magnetic stirring was used without the addition of any solvents or emulsifiers. In all cases a mixture of mono‐, di‐ and triglycerides was obtained.
Gerald P. McNeill +2 more
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Biotechnology Letters, 1999
Palm and palm kernel oils were reacted with glycerol using a 1,3-positional specific commercial lipase from Rhizopus delemar, Lipase D ‘Amano’ 100 (40 °C, 500 Units lipase/g oil) in the absence of solvent. After 24 h, partial acylglycerols contents of the glycerolysis products of palm and palm kernel oils were 66% (w/w) and 64% (w/w), respectively. The
Melek Tüter +4 more
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Palm and palm kernel oils were reacted with glycerol using a 1,3-positional specific commercial lipase from Rhizopus delemar, Lipase D ‘Amano’ 100 (40 °C, 500 Units lipase/g oil) in the absence of solvent. After 24 h, partial acylglycerols contents of the glycerolysis products of palm and palm kernel oils were 66% (w/w) and 64% (w/w), respectively. The
Melek Tüter +4 more
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Glycerolysis of Esters with Candida antarctica Lipase B in Glycerol
Journal of Advanced Chemical Engineering, 2011Glycerol was successfully used as a green solvent and as the acyl acceptor in the transesterification of amyl and benzyl acetate using immobilized Candida antarctica lipase B. It was found that increasing either the reaction temperature or the enzyme to substrate ratio increased the conversion of both esters.
Adi Wolfson +4 more
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Production of diacylglycerols through low-temperature chemical glycerolysis
Food Chemistry, 2010Abstract The aim of this study was to produce diacylglycerols (DAG) by chemical glycerolysis of soybean oil at low temperatures. Solvents and low-frequency ultrasonic irradiation were introduced to enhance the reaction. Three operation modes, namely mechanical stirring, magnetic stirring and ultrasonic irradiation, were compared.
Zhong, Nanjing +5 more
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